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Search: Posts Made By: bstewara
Forum: Troubleshooting TVs and Video Sources 11-28-2021, 06:50 PM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

Sorry
No I did not.
Iíve had a difficult time finding software for the ch341 programmer.
I think Iím going to try and find a pre programmed chip to install or purchase another main board.
Not...
Forum: Troubleshooting TVs and Video Sources 10-26-2021, 12:26 PM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

Hi lotus,
I ordered a programmer I will send you the dump from the spi flash next week sometime.
Thanks again
Forum: Troubleshooting TVs and Video Sources 10-26-2021, 12:10 PM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

Hi lotus
I just want to thank you for your assistance!
Youíve been a great help!

Thank You
Forum: Troubleshooting TVs and Video Sources 10-26-2021, 10:21 AM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

Hi,

I did find it!
Thanks for the photo.

Do you know if this ic can be purchased pre flashed and ready to install?
I don’t have a programmer

Thank you for all of your help
Forum: Troubleshooting TVs and Video Sources 10-26-2021, 10:15 AM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

No,
I’m sorry my main board is BN94-12399A

Thanks
Forum: Troubleshooting TVs and Video Sources 10-26-2021, 07:09 AM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

Hi,
Iím not seeing ic1604
However I found ic1603 (25q80dvsig). (1733)
Could this be the correct ic for this model?

Thanks again
Forum: Troubleshooting TVs and Video Sources 10-26-2021, 04:29 AM
Replies: 2
Views: 450
Posted By bstewara
Re: LG 55UN6955ZUF. Help

Hi,
I have tried unplugging each side individually.
Made no difference.
Same result .No video

Thanks
Forum: Troubleshooting TVs and Video Sources 10-25-2021, 02:41 PM
Replies: 2
Views: 450
Posted By bstewara
LG 55UN6955ZUF. Help

Hi
I recently acquired an LG55 UN6955ZUF
When I cycle it on it has backlights and audio.
No video just the light blue hue of the backlights.
Iíve replaced the main board hoping it would take...
Forum: Troubleshooting TVs and Video Sources 10-16-2021, 04:49 AM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

Thanks Much
I will try and find another MB .
Forum: Troubleshooting TVs and Video Sources 10-12-2021, 05:55 PM
Replies: 19
Views: 1,550
Posted By bstewara
Re: Samsung un49mu7000f dead no power

Hi,
I have replaced the main board with 2 different replacement boards from TV PARTS TODAY and also replaced the power supply board once with no change.
(Am I getting defective boards from TVPARTS...
Forum: Troubleshooting TVs and Video Sources 10-08-2021, 06:42 AM
Replies: 19
Views: 1,550
Posted By bstewara
Samsung un49mu7000f dead no power

Hi.
Iím working on a Samsung UN49MU7000F that has no standby LED indicator.
No POWER
The power supply board is part number BN44-00876A
The main board number is BN94-12399A
I am stuck.
I have...
Forum: Troubleshooting TVs and Video Sources 10-07-2021, 07:14 AM
Replies: 0
Views: 346
Posted By bstewara
Samsung un49mu7000f help needed

Hi.
I’m working on a Samsung UN49MU7000F that has no standby LED indicator.
No POWER
The power supply board is part number BN44-00876A
The main board number is BN94-12399A
I am stuck.
I have...
Forum: Troubleshooting TVs and Video Sources 04-03-2021, 06:16 PM
Replies: 8
Views: 693
Posted By bstewara
Re: Samsung un58j5190 part identification

Hi,
Thanks for responding.
I have replaced the backlights but, need assistance in identifying MOSFETS Qm801/802CS
The MOSFETS were damaged so severely that I’m unable to identify the markings on...
Forum: Troubleshooting TVs and Video Sources 04-03-2021, 12:34 PM
Replies: 8
Views: 693
Posted By bstewara
Re: Samsung un58j5190 part identification

Hi
Thanks again!
My power supply board is BN44000787A.
Dimensionally the 50R380 is the correct size 60mm x 65mm. My board uses this Mofset in location QS101C. (50R380)


Could this MOSFET also...
Forum: Troubleshooting TVs and Video Sources 04-03-2021, 10:52 AM
Replies: 22
Views: 1,840
Posted By bstewara
Re: Samsung UN58J5190AFXZA pwr supply troubleshooting help

Hi,

Weíre you able to determine the part number for QM801 and 802CS MOSFETS?
I have a set that these MOSFETS failed and burnt so I canít see the part numbers.

Thanks in advance
Forum: Troubleshooting TVs and Video Sources 04-03-2021, 10:41 AM
Replies: 8
Views: 693
Posted By bstewara
Re: Samsung un58j5190 part identification

Hi,
Thanks
I did read that post regarding that part number.
Samsung uses that same location part number in many different series sets.( I think that part number is from a different Samsung TV.
...
Forum: Troubleshooting TVs and Video Sources 04-03-2021, 07:39 AM
Replies: 8
Views: 693
Posted By bstewara
Samsung un58j5190 part identification

Hi,
I have a Samsung UN58J5190 that I need help identifying a couple of MOSFETS on.
Their location on the power supply board (BN4400787) is QM801CS and QM802CS.
The parts on my board are to burnt...
Forum: Troubleshooting TVs and Video Sources 01-29-2020, 04:54 PM
Replies: 2
Views: 775
Posted By bstewara
Re: Sony xbr65x750d 4 red flashes

I believe the 4 blink error is backlight issues.
Unfortunately pretty common with the kdl 65 and 75 series.
Forum: Troubleshooting TVs and Video Sources 12-13-2019, 11:16 AM
Replies: 4
Views: 1,146
Posted By bstewara
Re: Sony Mainboard Repair

Yes this is an android based system.
It was Diagnosed by a repair center in Tucson who explained that they thought it was the main processor.
Their term was a corrupted processor.

They were...
Forum: Troubleshooting TVs and Video Sources 12-12-2019, 08:47 AM
Replies: 4
Views: 1,146
Posted By bstewara
Sony Mainboard Repair

Hi,
Does anyone out there that know of a tv repair service that can supply and replace the processor in a Sony main board?
Model # KDL-75W850C
Main board A2071514A. BMX
I have had no luck in...
Forum: Troubleshooting TVs and Video Sources 12-10-2019, 08:32 PM
Replies: 10
Views: 3,609
Posted By bstewara
Re: Sony KDL-65W855C blinking 6 times - service manual?

Hi,
If the main board part number is A2071514A I would be interested in buying it.
I’m looking for a good main board for my Sony.
Please text Randy at 816 689 7150

Thanks
Forum: Troubleshooting TVs and Video Sources 07-09-2019, 06:45 PM
Replies: 17
Views: 1,746
Posted By bstewara
Re: Sony XBR75X850C

You are exactly right.
Itís a big job for such a small item to repair
Forum: Troubleshooting TVs and Video Sources 07-08-2019, 07:44 PM
Replies: 9
Views: 2,021
Posted By bstewara
Re: Kdl-75w850c

Hi,
I have a 75 inch Sony with the same error code. (6 blinks)
Pretty sure that the issue is defective leds in backlight.
I had spare boards that I swapped out with no success.
My next step is to...
Forum: Troubleshooting TVs and Video Sources 07-08-2019, 07:39 PM
Replies: 3
Views: 755
Posted By bstewara
Forum: Troubleshooting TVs and Video Sources 07-05-2019, 08:06 PM
Replies: 3
Views: 755
Posted By bstewara
insignia ns-50d550na15

Hello All!
Would anyone have a schematic/service manual for an insignia ns-50d550na15 ?
I have some wires detached from the infrared sensor plug and need to identify their locations to reattach.
...
Showing results 1 to 25 of 31

 
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